The heat index is expected to increase up to 32°C-41°C in some parts of the country.
People residing in North-Western, Western, Sabaragamuwa and Southern Provinces and in Mannar and Monaragala Districts are urged to be vigilant in this regard.
The advisory issued by the Meteorology Department mentioned that this warning is in effect until today (04).
The public is advised to limit strenuous outdoor activities and stay hydrated in order to avoid heat cramps and heat exhaustion caused extreme heat.
Heat Index Forecast is calculated by using relative humidity and maximum temperature and this is the condition that is felt on human body.
Therefore the public is advised to Stay hydrated and take breaks in the shade as often as possible while outdoors, Check up on the elderly and the sick, Never leave children unattended in vehicles and Limit strenuous outdoor activities and find shade and stay hydrated.
The Met Department also advised the public to wear lightweight and white or light colored clothing to minimize the impact of the heat on the body